Thanks fr the answer. I think it's authentic because I have another Heath Ledger&Jake Gyllenhaal autograph which looks a lot like this. The seller told me he got it at the NY airport when Heath was with his daughter in 2007..

Hi I bought this amazing Heath Ledger autograph from a website. I'm pretty sure this is a genuine what do you think?
Thanks guys =)

I'm selling a part of my collection because I need some money. ppm and I'll show you pictures and discuss about price!
- Robbie Williams Booklet
- Justin Timberlake Booklet
- Roman Polanski
- Natalie Portman "Black Swan"
- Robert Redford
- Mark Wahlberg
- Catherine Deneuve

Hello!
I'm still trying to sell this big poster of Zac EFron's Charlie ST cloud signed! PM me for informations! DOn't hesitate! I would sell it about 75$!

Hello!
I've just bought for about 90$ this Amy Winehouse's autograph with COA! Tell me it is not a fake?
Thanks for your answers =)

I'm selling/trading a huge poster signed from zac Efron. I won it at a contest so it's sure that it is authentic! Give some offers ;) Ask for a picture if you're interested!

Hello! First, thanks a lot for your answer; the seller told me he got it from David Letterman's show... But today I was looking on ebay and I saw this, not from the same seller, perhaprs is it a true signature?! http://cgi.ebay.ch/ws/eBayISAPI.dll?ViewItem&item=180679083535&ssPageName=STRK:M...

Hello =) I've just bought this beautiful autograph from the amazing Natalie Portman on a website because the picture was beautiful and she's really hard to have. But when I finally got it at home, I remarked that her signature was a bit strange. usually natalie signature's small and the letters don'...

Thank you very much for this advice! I won't buy it ;)
If you have some ideas where I could a real one...!

Thanks for the answer but I could you be sure, the poster provides from http://www.neautograph.com/inc/sdetail/3653 and they told me that it was signed during the filming of one of him movie and that his signature could change . What to think about it?